One should also be certain that the original state can be returned to in case things do not go as planned. Also consider the how the plan will affect the user or other aspects of the network. Thinking ahead can help ensure productivity doesn’t suffer and that downtime is minimized. What has changed since the last time you were able to do this task?

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On your local computer, the IP address of this router is displayed as the gateway address. D. DNS uses TCP for zone exchanges between servers and UDP CompTIA NET+ Certification Lessons when a client is trying to resolve a hostname to an IP address. B. To connect two switches together or a hub to a switch, you need a crossover cable.

• Specifically note any questions that confuse you, and study the corresponding sections of the book again.
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• The token is passed around the ring giving all stations an opportunity to communicate.
• It does not guarantee delivery and does not give acknowledgement of packets that are lost or sent out of order as this is the responsibility of higher layer protocols such as TCP.

VLAN – A virtual LAN is a local area network with a definition that maps workstations on a basis other than geographic location . The virtual LAN controller can change or add workstations and manage load-balancing and bandwidth allocation more easily than with a physical picture of the LAN. Network management software keeps track of relating the virtual picture of the local area network with the actual physical picture. Point-to-point – This topology generally refers to a connection restricted to two endpoints. Point-to-point is sometimes referred to as P2P (not the same as peer-to-peer file sharing networks), or Pt2Pt, or variations of this. Examples of this topology include RS-232 serial connections as well as laser network connections between buildings.

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Or maybe this is your first attempt at certification because you’ve decided to venture into a new career in information technology . You’ve realized that getting into the IT sector is a good way to go because as the information age marches on, the demand for knowledgeable professionals in this dynamic field will only intensify dramatically.

Before the advent off the wireless technology era, the existing communication technologies were primarily powered by wired technology. From the telephone to the fax machine, communication was not possible without a physical connection between the communication device and the source of the power of the device. For instance, there had to be a connection between a wired telephone and the dial board for communication to be possible. Just as with every other wired device, wireless communication has successfully displaced wired communication. A. Load balancing refers to a technique used to spread work out to multiple computers, network links, or other devices. You can load-balance work on servers by clustering servers so that multiple machines all provide the same service. Chapter 10, “Routing Protocols” This chapter goes into detail describing the protocols that run on routers and that update routing tables to create a working map of the network.